An 80 kg man is one fourth the way up a 10 m ladder that, Ask an Expert

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An 80 kg man is one fourth the way up a 10 m ladder that isresting against a smooth frictionless wall. The ladder has amass of 20 kg and it makes an angle of 60 degrees with thefloor.

a. What is the normal force of the wall on the ladder?

b. What is the normal force of the floor onthe ladder?

c. What is the coefficient of staticfriction between the floor and the ladder?

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